using System;

public class Program

{

    public static void Main()

    {

        decimal num = -126.45m;

        Console.WriteLine(num.ToString("C", System.Globalization.CultureInfo.GetCultureInfo("FI-fi")));

​

        System.Globalization.CultureInfo fiCul = System.Globalization.CultureInfo.GetCultureInfo("FI-fi");

        Console.WriteLine(fiCul.NumberFormat.CurrencyNegativePattern);

    }

}